Improvement in cultivators



ENT FFIGE NATHAN T. BREWSTER AND ABRAHAM-n. NEHER, 0F ROSEVILLE,-OAL.

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent NOE-191,101, dated May22,1877 application filed April 11, 1877.

To all whom it may concern:

Be it known that we, NATHAN T. BREW- STER and ABRAHAM D. NEHER, ofRoseville, in the county of Placer and State of California, haveinvented a new and Improved Cultivator; and we do hereby declare thatthe following is a full, clear, and exact description of the same,reference being bad to the accompanying drawing, forming part of thisspecification, in which- Figure 1 is a side view with the cultivatorteeth and frame raised. Fig. 2 is a top view.

Our invention relates to certain improvements in cultivators; and itconsists in the particular arrangement of a double wroughtiron frame,combined with cultivator-teeth and separating-blocks located between theparts of the frame, one set of which blocks, in the front and also inthe rear of the cultivator, form bearings for wheeled axles, throughwhich the cultivator is raised for transportation or lowered for use,the particular arrangement of the cultivator being such as to impart tothe'same great strength and durability, and to permit the same to bereadily taken to pieces and used independently of its wheels, ifdesired.

In the drawing,Arepresents the main frame, made in triangular shape, ofbars of wroughtiron, while A A are a second set of similar bars, locatedabove the side bars of the main frame, and separated from them by meansof blocks B, so as to form with said main frame a double frame for thecultivator-teeth O.

The upper portions of the shanks of the cultivator-teeth are reduced insize, so as to leave shoulders a, which abut against the lower side ofthe main frame-bars A, to pre' vent them from slipping up through thesame, while the said smaller upper ends passthrough the main frame, theblocks B, and the upper bars A, and are securely held in position bymeans of nuts b upon their screw-threaded ends above the said upperbars. The blocks B serve, in this connection, not only to make a firmconnection and long bearing for the upper end of the cultivator-teeth,but, by having them made of cast-iron and of different sizes, they maybe employed to increase or diminish the weight of the cultivator. Thecultivatorteeth are provided, further, with braces I),

, which are bolted to said teeth at one end,and

to the lower side of the bars of the main frame at the other, whichbraces serve to give additional strength to the teeth.

In arranging the cultivator to be transported upon wheels, we lengthenone set of the rear blocks B B, and also one set of the forward blocks BB and in the bottom portion of said blocks we form journal-bearings, inwhich are located the axles E and F, that support the cultivator, andare themselves supported upon wheels E and F. The axle E of the rearwheels is a double-crank axle, while F is a plain axle supported by asingle wheel, and provided with an upwardly-extended arm, G, which isconnected through a rod, H, with a lever, I, firmly fixed upon the crank-axle. Now, by moving the lever I the crank-axle is turned, and the rearportion of the cultivator raised or lowered, while, at the same time,the front portion is also raised or lowered, through rod H and arm G, bythe throwing of the front wheel to the front or rear upon its axle as apivot, the cultivator being fixed and held in its raised position bymeans of a notched bar, J, with which the lever I is made to engage.

With respect to the advantages of our invention, it will be seen thatthe blocks B, by their detachable character, permit the cultivator to betaken to pieces and packed up within a small space, while the firm anddurable connection which they afford, together with the regulation ofthe Weight of the cultivator, renders the implement espeeiallyadapted touse upon the Western lands.

By locating the axles of the wheels, also, in bearings in the detachableblocks, the wheels and their axles may be readily removed from thecultivator without further alteration or injury, and the cultivator usedwith or without wheels, as may be desired.

In defining more clearly the scope of our in vention, we would statethat we do not claim, broadly, the double frame, nor the reduced shanksof the teeth; neither do we claim the means for raising and lowering thecultivator, nor the general application of blocks to separate the partsof a frame; but when the blocks are perforated, and. arranged as shown 7with respect to the shanks of the teeth, which pass through saidperforations and the double 7 frame, which incloses said blocks, theblocks eo-operate with the teeth to afford a long bearing and a rigidand secure connection for their bined with the detachable blocks Bandthev cultivator-teeth O, having reduced shanks passing through the saidblocks and bars, to be secured above the same, and provided with bracesD, substantially as and for the purpose set forth.

2. The combination, with the double frame A A, of the detachable blocksB held by the shank of the cultivator-tooth, and the axle of thetransporting-wheel, arranged in bearings in said blocks, as and for thepurpose described.

' NATHAN T. BREWSTER.

ABRAHAM D. NEHER.

Witnesses to the signature of Neher:

Enw. W. BYRN, AMos W. HART.

Witnesses to the signature of Brewster:

SAM. J. PULLEN, JNO. L. BERRY.

